数学季刊 ›› 2015, Vol. 30 ›› Issue (3): 366-372.doi: 10.13371/j.cnki.chin.q.j.m.2015.03.007
摘要: In this paper, we first give and prove a geometric identity for distance between any point and mass-points of two mass-points systems in n-dimensional Euclidean space Rn.As its application, we obtain an equality for two mass-points systems and its radius of the circumscribed sphere and an inequality for distance between mass-points of two mass-points systems and its k-dimensional volume.
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